React Get Current DateTime | Reactjs DateTime Now

<!DOCTYPE html>
<html>
  <head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.14.0/umd/react.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.14.0/umd/react-dom.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
  </head>
  <body>
    <div id="app"></div>
    <script type="text/babel">
      const { useState, useEffect } = React;

function App() {
        const [currentTime, setCurrentTime] = useState("");

useEffect(() => {
          // Update the time every second
          const interval = setInterval(() => {
            const now = new Date();
            const year = now.getFullYear();
            const month = String(now.getMonth() + 1).padStart(2, "0");
            const day = String(now.getDate()).padStart(2, "0");
            const hours = String(now.getHours()).padStart(2, "0");
            const minutes = String(now.getMinutes()).padStart(2, "0");
            const seconds = String(now.getSeconds()).padStart(2, "0");

setCurrentTime(
              `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
            );
          }, 1000);

// Clean up the interval on unmount
          return () => clearInterval(interval);
        }, []);

return (
          <div className="container">
            <h3>React Js Date Time Format - 24-hour format (local time)</h3>
            <p>Current Local Time (24-hour format): {currentTime}</p>
          </div>
        );
      }

ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
      .container {
        margin: 0 auto;
        width: 500px;
        text-align: center;
        box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12),
          0 2px 4px 0 rgba(0, 0, 0, 0.24);
        padding: 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
      }
    </style>
  </body>
</html>

 
<!DOCTYPE html>
<html>
  <head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.14.0/umd/react.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.14.0/umd/react-dom.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
  </head>
  <body>
    <div id="app"></div>
    <script type="text/babel">
      const { useState, useEffect } = React;
​
      function App() {
        const [currentTime, setCurrentTime] = useState("");
​
        useEffect(() => {
          // Update the time every second
          const interval = setInterval(() => {
            const now = new Date();
            const year = now.getFullYear();
            const month = String(now.getMonth() + 1).padStart(2, "0");
            const day = String(now.getDate()).padStart(2, "0");
            const hours = String(now.getHours()).padStart(2, "0");
            const minutes = String(now.getMinutes()).padStart(2, "0");
            const seconds = String(now.getSeconds()).padStart(2, "0");
​
            setCurrentTime(
              `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
            );
          }, 1000);
​
          // Clean up the interval on unmount
          return () => clearInterval(interval);
        }, []);
​
        return (
          <div className="container">
            <h3>React Js Date Time Format - 24-hour format (local time)</h3>
            <p>Current Local Time (24-hour format): {currentTime}</p>
          </div>
        );
      }
​
      ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
      .container {
        margin: 0 auto;
        width: 500px;
        text-align: center;
        box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12),
          0 2px 4px 0 rgba(0, 0, 0, 0.24);
        padding: 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
      }
    </style>
  </body>
</html>
​